Positronium!

Talk about anything in here.

Positronium!

Postby Technomancer » Fri Sep 14, 2007 5:06 am

The world's first matter-antimatter molecule
http://www.nature.com/news/2007/070910/full/070910-5.html
The scientific method," Thomas Henry Huxley once wrote, "is nothing but the normal working of the human mind." That is to say, when the mind is working; that is to say further, when it is engaged in corrrecting its mistakes. Taking this point of view, we may conclude that science is not physics, biology, or chemistry—is not even a "subject"—but a moral imperative drawn from a larger narrative whose purpose is to give perspective, balance, and humility to learning.

Neil Postman
(The End of Education)

Anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that my ignorance is just as good as your knowledge

Isaac Aasimov
User avatar
Technomancer
 
Posts: 2379
Joined: Fri Jun 13, 2003 11:47 am
Location: Tralfamadore

Postby Doubleshadow » Fri Sep 14, 2007 6:31 am

To quote Bill Engvall:

"THIS! IS! SO! RIGH-TEOUS!"

Thank you, Technomancer!
[color="Red"]As a man thinks in his heart, so is he. - Proverbs 23:7[/color]

The Sundries
Robin: "If we close our eyes, we can't see anything."
Batman: "A sound observation, Robin."
User avatar
Doubleshadow
 
Posts: 2102
Joined: Sat Nov 13, 2004 7:04 pm
Location: ... What's burning?

Postby mitsuki lover » Fri Sep 14, 2007 1:21 pm

Can warp drive now be far behind.Seriously if they have discovered/developed or whatever the first matter/antimatter molecule
then the realism of something like warp drive might not be a fantasy after all.As you remember it's a combination of matter/antimatter that
helps to create the field that makes warp possible.
User avatar
mitsuki lover
 
Posts: 8486
Joined: Sun Oct 03, 2004 12:00 pm

Postby Slater » Fri Sep 14, 2007 4:55 pm

Too bad antimatter is still worth like 200 billion USD per gram...
Image
User avatar
Slater
 
Posts: 2671
Joined: Sat May 22, 2004 10:00 am
Location: Pacifica, Caliphornia

Postby Technomancer » Sat Sep 15, 2007 9:04 am

Gotta keep that stuff in something too.
The scientific method," Thomas Henry Huxley once wrote, "is nothing but the normal working of the human mind." That is to say, when the mind is working; that is to say further, when it is engaged in corrrecting its mistakes. Taking this point of view, we may conclude that science is not physics, biology, or chemistry—is not even a "subject"—but a moral imperative drawn from a larger narrative whose purpose is to give perspective, balance, and humility to learning.

Neil Postman
(The End of Education)

Anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that my ignorance is just as good as your knowledge

Isaac Aasimov
User avatar
Technomancer
 
Posts: 2379
Joined: Fri Jun 13, 2003 11:47 am
Location: Tralfamadore

Postby mechana2015 » Sat Sep 15, 2007 11:01 am

Thats a good question actually... how ARE they containing this when they make it?
Image

My Deviantart
"MOES. I can has Sane Sig now?"
User avatar
mechana2015
 
Posts: 5025
Joined: Wed Oct 22, 2003 12:33 am
Location: Orange County

Postby Slater » Sat Sep 15, 2007 11:28 am

They aren't really. The molecule is in existance for magnitudes under a second before disappearing in a "flash of light." That flash of light is the energy released from the matter/antimatter pair annhiallating itself. But they still have the tools to see exactly what happened with the particles.
Image
User avatar
Slater
 
Posts: 2671
Joined: Sat May 22, 2004 10:00 am
Location: Pacifica, Caliphornia

Postby Blitzkrieg1701 » Sat Sep 15, 2007 10:33 pm

The real question is when someone will invent some Dilithium crystals so we can put this stuff to WORK
Image Image

[font="Book Antiqua"][color="Purple"]For the love of Christ controls us, having concluded this: that one died for all, therefore all died; and he that died for all, so that they who live might no longer live for themselves, but for Him who died and rose again on their behalf. II Corinthians 5:14-15[/color][/font]
User avatar
Blitzkrieg1701
 
Posts: 1884
Joined: Wed Jun 02, 2004 9:01 am
Location: Washington, DC (when I'm not in an alternate universe)

Postby mitsuki lover » Sun Sep 16, 2007 1:10 pm

Seriously though once more it appears we have stepped beyond the bounds of science fiction.
Now when are the aliens landing?
User avatar
mitsuki lover
 
Posts: 8486
Joined: Sun Oct 03, 2004 12:00 pm

Postby Dante » Sun Sep 16, 2007 10:11 pm

O_o why are you guys so surprised, sheesh, this stuff has been around for quite some time, we've known about anti-matter since dirac first encountered negative probabilities in his eqn (named after him). Since then I've done problem in QM where we consider a hydrogen atom equivolent in anti-matter... But sorry guys, keep in mind that we're building may a few of these atoms at a time, but nothing close to the 10^23 we know and love from Avagrados number :P. Plus, it's only the equivalent to hydrogen (and not even an isotope at that) thus we still have a quite a LONG LONG LONG LOOOOONG ways till warp drive save some remarkable breakthroughs in science I don't see coming within my lifetime... without enhancements by computers from the law of accelerating returns :P.

-Pascal
FKA Pascal
User avatar
Dante
 
Posts: 1323
Joined: Thu Mar 04, 2004 8:24 pm
Location: Where-ever it is, it sure is hot!

Postby Technomancer » Mon Sep 17, 2007 8:09 am

Anti-matter's nothing new, although what makes this interesting is the hybrid nature of the molecule. Of course, the researchers themselves are more interested in the fundamental properties of the stuff, in part to understand why the universe ended up with matter instead of either anti-matter, or an exact balance. As the article says, the authors also want to see if they can use the stuff to make gamma-ray lasers.
The scientific method," Thomas Henry Huxley once wrote, "is nothing but the normal working of the human mind." That is to say, when the mind is working; that is to say further, when it is engaged in corrrecting its mistakes. Taking this point of view, we may conclude that science is not physics, biology, or chemistry—is not even a "subject"—but a moral imperative drawn from a larger narrative whose purpose is to give perspective, balance, and humility to learning.

Neil Postman
(The End of Education)

Anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that my ignorance is just as good as your knowledge

Isaac Aasimov
User avatar
Technomancer
 
Posts: 2379
Joined: Fri Jun 13, 2003 11:47 am
Location: Tralfamadore

Postby mitsuki lover » Mon Sep 17, 2007 10:53 am

All I really know about anti-matter is it's a rather bad idea to have an identical particles of matter and anti-matter in the same place where they can touch.Big KA-BOOM!
User avatar
mitsuki lover
 
Posts: 8486
Joined: Sun Oct 03, 2004 12:00 pm

Postby That Dude » Thu Sep 20, 2007 10:37 am

That's quite interesting. I wonder how long it'll take until they can actually put it to use.
Image
I am convinced that many men who preach the gospel and love the Lord are really misunderstood. People make a “profession,â€
User avatar
That Dude
 
Posts: 5226
Joined: Sat Oct 04, 2003 4:00 am
Location: Where I can see mountains.

Postby mitsuki lover » Thu Sep 20, 2007 12:04 pm

Probably not for a long while.They have to learn how to keep it stable enough first before they can come up with more practical applications.
User avatar
mitsuki lover
 
Posts: 8486
Joined: Sun Oct 03, 2004 12:00 pm

Postby Technomancer » Thu Sep 20, 2007 2:11 pm

Stability may be difficult to achieve, although it may not have to last very long. I did some further reading, and it seems that the researchers hope to produce a Bose-Einstein condensate (http://en.wikipedia.org/wiki/Bose-einstein_condensate) of the substance in order to produce a lasing effect. If they can do this, then the positronium need only last for a short period and the subsequent annihilation will produce coherent gamma rays. This would only produce short bursts, but they will have a very high energy density.
The scientific method," Thomas Henry Huxley once wrote, "is nothing but the normal working of the human mind." That is to say, when the mind is working; that is to say further, when it is engaged in corrrecting its mistakes. Taking this point of view, we may conclude that science is not physics, biology, or chemistry—is not even a "subject"—but a moral imperative drawn from a larger narrative whose purpose is to give perspective, balance, and humility to learning.

Neil Postman
(The End of Education)

Anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that my ignorance is just as good as your knowledge

Isaac Aasimov
User avatar
Technomancer
 
Posts: 2379
Joined: Fri Jun 13, 2003 11:47 am
Location: Tralfamadore


Return to General

Who is online

Users browsing this forum: No registered users and 154 guests